High critical current density YBa2Cu3O7-δ coatings on LaMnO3-buffered biaxially textured Cu tapes for coated conductor applications

T. Aytug; A. Goyal; N. Rutter; M. Paranthaman; J. R. Thompson; H. Y. Zhai; D. K. Christen

doi:10.1557/JMR.2003.0120

High critical current density YBa₂Cu₃O_7-δ coatings on LaMnO₃-buffered biaxially textured Cu tapes for coated conductor applications

T. Aytug, A. Goyal, N. Rutter, M. Paranthaman, J. R. Thompson, H. Y. Zhai, D. K. Christen

Nanomaterials Chemistry Group

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

High critical current density (high-J_c) YBa₂Cu₃O_7-δ (YBCO) films were obtained by pulsed laser ablation on biaxially textured Cu substrates. To achieve epitaxy of LaMnO₃ (LMO) on Cu, thin epitaxial Ni overlayers were deposited on Cu tapes. The structure comprises the layer sequence of YBCO/LMO/Ni/Cu. For 200-nm-thick YBCO, self-field J_c values exceeding 1 × 10⁶ A/cm² at 77 K were achieved. Characterization of these short prototype conductors revealed good structural and morphological properties. Magnetic analysis suggested that hysteretic loss due to the ferromagnetic Ni overlayer is minimal.

Original language	English
Pages (from-to)	872-877
Number of pages	6
Journal	Journal of Materials Research
Volume	18
Issue number	4
DOIs	https://doi.org/10.1557/JMR.2003.0120
State	Published - Apr 2003

Funding

This work was supported by the United States Department of Energy, Division of Materials Sciences, Office of Science, Office of Power Technologies-Superconductivity Program, Office of Energy Efficiency and Renewable Energy. The research was performed at the Oak Ridge National Laboratory, managed by U.T.-Battelle, LLC, for the USDOE under Contract No. DE-AC05-00OR22725.

Funders	Funder number
Division of Materials Sciences
Office of Power Technologies-Superconductivity Program
U.S. Department of Energy	DE-AC05-00OR22725
Office of Science
Office of Energy Efficiency and Renewable Energy

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abstract = "High critical current density (high-Jc) YBa2Cu3O7-δ (YBCO) films were obtained by pulsed laser ablation on biaxially textured Cu substrates. To achieve epitaxy of LaMnO3 (LMO) on Cu, thin epitaxial Ni overlayers were deposited on Cu tapes. The structure comprises the layer sequence of YBCO/LMO/Ni/Cu. For 200-nm-thick YBCO, self-field Jc values exceeding 1 × 106 A/cm2 at 77 K were achieved. Characterization of these short prototype conductors revealed good structural and morphological properties. Magnetic analysis suggested that hysteretic loss due to the ferromagnetic Ni overlayer is minimal.",

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AU - Thompson, J. R.

AU - Zhai, H. Y.

AU - Christen, D. K.

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High critical current density YBa₂Cu₃O_7-δ coatings on LaMnO₃-buffered biaxially textured Cu tapes for coated conductor applications

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